As you already know, there are 3 difference between these 2 model, 1. faster CPU, 2. Bigger HD, 3. Backlit keyboard.
1. CPU: on 2.4G, it use P8600 with 6-9X multiplier. If you want to use Coolbook or RMClock to undervolt your Macbook, this should be the one to get. I was able to undervolt to 0.925V at 1.6G and at 1.050V at 2.4G, The undervolting really lower the power consumption and temperature. On the 2.0G model, it make less sense because you only have 2 setting, one at 6X, and the other at 7X.
2. HD: Hard Drive are super cheap nowadays. this is not a big advantage.
3. Backlit keyboard: i guess for this one. a picture is worth a thousand words.
my gf said the backlit is for geeks. I guess that would be me.
other findings,
Anandtech first reported the battery life is only about half of what they can achieve in OSX. This is actually TRUE! I'll share some of my observations.
1. Under Windows, the nvidia chip seems not be able to adjust power consumption. It feel like the GPU/Chipset is running full power all the time.
2. The entire notebook is notifiable hotter in Windows XP
3. You CAN download driver from Nvidia's website and update the graphic driver. but the powermiser is not working.
